Patch from Ben Dooks

Include the central code for detecting the cpu in use,
and initialising it's IO. Updated all mach-XXX.c files to
use this new init.

Added the first stage of the new serial port code by
calling s3c2410_init_uarts() instead of just setting
a variable.

Updates mach-h1940.c to prefix with h1940_ instead of ipaq_

Small fixes for redundant code

Signed-off-by: Ben Dooks